CN102149538A - Reinforcement sheet for resin molded products, and structure and method for reinforcing resin molded products - Google Patents

Reinforcement sheet for resin molded products, and structure and method for reinforcing resin molded products Download PDF

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Publication number
CN102149538A
CN102149538A CN2009801356913A CN200980135691A CN102149538A CN 102149538 A CN102149538 A CN 102149538A CN 2009801356913 A CN2009801356913 A CN 2009801356913A CN 200980135691 A CN200980135691 A CN 200980135691A CN 102149538 A CN102149538 A CN 102149538A
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CN
China
Prior art keywords
synthetic resin
sheet
enhancement layer
enhancing
strengthening
Prior art date
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Pending
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CN2009801356913A
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Chinese (zh)
Inventor
藤井隆裕
间濑拓也
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Nitto Denko Corp
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Nitto Denko Corp
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Publication of CN102149538A publication Critical patent/CN102149538A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2813—Heat or solvent activated or sealable

Abstract

A reinforcement sheet for a resin molded product includes a constraining layer and a reinforcing layer laminated onto the constraining layer. The reinforcement sheet for a resin molded product has a bending strength of 3 N or more by a displacement of 1 mm, and has a maximum bending strength of 30 N or more, after the reinforcement sheet for a resin molded product is adhesively bonded to a polypropylene plate having a thickness of 2.0 mm, and heated at 80 DEG C for 10 minutes.

Description

Synthetic resin enhancing structure and the Enhancement Method that strengthens sheet, synthetic resin
Technical field
The present invention relates to synthetic resin with the enhancing structure and the Enhancement Method that strengthen sheet, synthetic resin, in particular to synthetic resin with enhancing sheet, the enhancing structure of synthetic resin of using it and the Enhancement Method of synthetic resin.
Background technology
In the past, to resin plate, the steel plate that uses in the various industry goods,, it is processed as lamellar in order to alleviate the weight of these goods.
Therefore, in order to seek the enhancing of laminal resin plate, for example, known inboard at resin plate is provided with reinforcement.
In addition, in order to seek the enhancing of laminal steel plate, for example, known inboard at steel plate is provided with steel plate reinforcing sheet.
Following scheme is for example disclosed, promptly, after the steel plate reinforcing sheet of the enhancement layer that will possess restraint layer and be formed by the foaminess composition and the car body steel plate of automobile are fitted, the heat of the high temperature when utilizing electrodeposition coating (for example, 160～200 ℃), make enhancement layer foaming and curing, the car body steel plate to automobile strengthens (for example, with reference to following patent documentation 1) thus.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2005-41210 communique
Summary of the invention
The problem that invention will solve
Yet reinforcement is common and resin plate is integrally formed, when it is shaped, produces defective on the surface of the resin plate that utilizes the reinforcement partial enhanced, therefore, has the unfavorable condition of the outward appearance of damaging resin plate.
In addition, when using the steel plate reinforcing sheet of putting down in writing in the above-mentioned patent documentation 1 to strengthen, the enhancement layer of steel plate reinforcing sheet need be heated to 160～200 ℃ and make its curing.Therefore,, be heated to 160～200 ℃, resin plate generation deterioration then takes place sometimes, perhaps produce the unfavorable condition of fusion and so on if such steel plate reinforcing sheet and resin plate are fitted.
The objective of the invention is to, provide a kind of synthetic resin with strengthening sheet, its light weight and not affecting the appearance, can prevent the deterioration or the fusion of synthetic resin by the heating of lower temperature, and can strengthen synthetic resin simply, the present invention also provides the enhancing structure and the Enhancement Method of synthetic resin.
The means that are used to deal with problems
To achieve these goals, synthetic resin of the present invention is characterised in that with strengthening sheet, possess restraint layer and the enhancement layer that is layered on the described restraint layer, described synthetic resin is fitted with the polypropylene board that strengthens sheet and thickness 2.0mm, and be more than the 3N with the bending strength of 80 ℃ of heating 1mm displacements after 10 minutes, and maximum deflection intensity is more than the 30N.
In addition, with strengthening in the sheet, the storage elastic modulus under preferred 25 ℃ of the above-mentioned enhancement layer is more than the 500kPa, and the storage elastic modulus under 80 ℃ is below the 400kPa at synthetic resin of the present invention.
In addition, synthetic resin of the present invention with strengthen that 90 degree disbonded tests that sheet preferably utilizes JIS Z0237 measure with respect to the normal temperature of polypropylene board the time bonding force be more than the 0.3N/25mm.
In addition, with strengthening in the sheet, above-mentioned enhancement layer is preferably formed by the adhesive composition of hot adhesive type at synthetic resin of the present invention.
In addition, with strengthening in the sheet, comprise the polymer of monomers that contains conjugated diene at synthetic resin of the present invention in the preferred adhesive composition.
In addition, with strengthening in the sheet, adhesive composition preferably also contains tackifier at synthetic resin of the present invention.
In addition, with strengthening in the sheet, the cooperation ratio of tackifier is 40～200 weight portions with respect to described polymer 100 weight portions preferably at synthetic resin of the present invention.
In addition, the enhancing structure of synthetic resin of the present invention is characterised in that, by following synthetic resin is fitted with strengthening sheet and synthetic resin, then, be heated to more than 80 ℃, this synthetic resin is connected airtight with strengthening sheet and described synthetic resin, thereby described synthetic resin is strengthened, wherein, described synthetic resin possesses restraint layer and the enhancement layer that is layered on the described restraint layer with the enhancing sheet, described synthetic resin is fitted with the polypropylene board of thickness 2.0mm with strengthening sheet, and be more than the 3N, and maximum deflection intensity is more than the 30N with 80 ℃ of bending strengths that heat the 1mm displacements after 10 minutes.
In addition, in the enhancing structure of synthetic resin of the present invention, preferably in advance described synthetic resin is heated to more than 80 ℃ with the enhancing sheet, then, described synthetic resin is fitted with strengthening sheet and described synthetic resin.
In addition, the Enhancement Method of synthetic resin of the present invention is characterised in that, possess: will possess restraint layer and be layered in the operation of the synthetic resin of the enhancement layer on the described restraint layer with enhancing sheet and synthetic resin applying, wherein, described synthetic resin is fitted with the polypropylene board that strengthens sheet and thickness 2.0mm, and be more than the 3N with the bending strength of 80 ℃ of heating 1mm displacements after 10 minutes, and maximum deflection intensity is more than the 30N; And, described synthetic resin is connected airtight with strengthening sheet and described synthetic resin, thereby the operation that described synthetic resin is strengthened by described synthetic resin is heated to more than 80 ℃ with strengthening sheet and/or described synthetic resin.
In addition, in the Enhancement Method of synthetic resin of the present invention, preferably in the operation that described synthetic resin is fitted with enhancing sheet and described synthetic resin, in advance described synthetic resin is heated to more than 80 ℃ with the enhancing sheet, then, described synthetic resin is fitted with strengthening sheet and described synthetic resin.
The invention effect
According to using synthetic resin of the present invention with strengthening enhancing structure sheet, synthetic resin of the present invention and Enhancement Method, synthetic resin is fitted with enhancement layer that strengthens sheet and synthetic resin, utilize lower temperature that synthetic resin and/or synthetic resin are heated with the enhancing sheet, pass through enhancement layer, restraint layer and synthetic resin are connected airtight securely, can improve the rigidity of synthetic resin simultaneously with the enhancing sheet.Therefore, can positively strengthen synthetic resin by this synthetic resin with strengthening sheet.
Particularly, with strengthening sheet, heat, can only strengthen simply this part by the hope partial enhanced applying synthetic resin in synthetic resin only.
In addition, by possessing restraint layer and enhancement layer, easy formation, realizing that slimming and light-weighted while can also strengthen synthetic resin.
Description of drawings
Fig. 1 is that expression is fitted synthetic resin of the present invention with strengthening sheet and synthetic resin, and heats, the key diagram of an embodiment of the Enhancement Method of the synthetic resin of the present invention that strengthens thus,
(a) expression is prepared synthetic resin with strengthening sheet, peels off the operation of mold release film,
(b) expression is fitted the operation that heats with synthetic resin with strengthening sheet and synthetic resin.
The specific embodiment
Synthetic resin of the present invention possesses restraint layer and the enhancement layer that is layered on the restraint layer with the enhancing sheet.
Restraint layer is in order to give toughness setting to the enhancement layer after applying and the heating, form sheet, in addition, its preferably by light weight and film, can connect airtight incorporate material with enhancement layer and form, specifically, can enumerate glass fabric, soak resiniferous glass fabric, synthetic resin nonwoven, metal forming, carbon fiber, polyester film etc.
Glass fabric is a material of glass fibre being made cloth, can enumerate known glass fabric.
Soaking resiniferous glass fabric is the material that soaks synthetic resin such as containing thermosetting resin, thermoplastic resin in above-mentioned glass fabric, can enumerate the known resiniferous glass fabric that soaks.In addition, as thermosetting resin, for example can enumerate epoxy resin, polyurethane resin, melamine resin, phenolic resins etc.In addition, as thermoplastic resin, for example, can enumerate vinyl acetate resin, vinyl-vinyl acetate copolymer (EVA), vinyl chloride resin, EVA-vinyl chloride resin copolymer etc.In addition, above-mentioned thermosetting resin and thermoplastic resin can be distinguished separately and to use also and can and use.
As metal forming, for example can enumerate the known metal forming of aluminium foil, steel foil etc.
Carbon fiber is to make the material that cloth forms as the fiber of principal component with carbon, can enumerate known carbon fiber.
As polyester film, can enumerate for example PETG (PET) film, PEN (PEN) film, polybutylene terephthalate (PBT) (PBT) film etc.Preferably can enumerate the PET film.
In these restraint layers, consider, preferably can enumerate glass fabric, soak resiniferous glass fabric, polyester film from connecting airtight property, intensity and cost aspect.
In addition, the thickness of restraint layer is 0.05～2.0mm for example, is preferably 0.1～1.0mm.
Enhancement layer can form by adhesive composition is configured as sheet.
Adhesive composition is hot adhesive type, particularly, for example, embodies adhesivity (cohesive) by the heating more than 80 ℃.
In the adhesive composition,, for example contain the polymer of monomers of conjugated diene as principal component.
As conjugated diene, for example, can enumerate 1,3-butadiene, isoprene (2-methyl isophthalic acid, 3-butadiene), chlorobutadiene (2-chloro-1,3-butadiene) etc.
In addition, in monomer, can contain as optional member with the combined polymerization monomer of conjugated diene copolymerization with conjugated diene as containing by composition.
As the combined polymerization monomer, for example can enumerate 1, non-conjugated diene classes such as 2-butadiene, for example ethene, propylene, isobutene olefines such as (2-metering systems), for example aromatic vinyl monomer such as styrene, for example vinyl monomer of cyano-containing such as (methyl) acrylonitrile etc.
These combined polymerization monomers can use separately or also use more than 2 kinds.
Then, as above-mentioned polymer of monomers, can enumerate: for example polybutadiene, polyisoprene, chloroprene polymer (CR) etc.; Only by the independent polymer of the above-mentioned monomer that must composition constitutes, for example, acrylonitrile-butadiene (random) copolymer, s-B-S (block) copolymer (SBS), styrene-butadiene (random) copolymer, styrene-isoprene-phenylethene (block) copolymer (SIS), isobutylene-isoprene (random) copolymer, styrene-ethylene-styrene (block) copolymer (SES), styrene-ethylene-butylene-styrene (block) copolymer (SEBS) etc.; By above-mentioned must composition and the copolymer etc. of the monomer that constitutes of composition arbitrarily.
In addition, when polymer was above-mentioned copolymer, with respect to conjugated diene 100 weight portions, the cooperation ratio of the combined polymerization monomer in the combined polymerization for example was 10～100 weight portions.
In addition, the weight average molecular weight of polymer (based on the polystyrene conversion value of GPC) for example is more than 20000, to be preferably 25000～100000.
In addition, the Mooney viscosity of polymer for example is 20～80 (ML1+4, at100 ℃), is preferably 30～70 (ML1+4, at100 ℃).
In addition, 25 weight % toluene solution viscosity (25 ℃) of polymer are 100～100000mPas for example, are preferably 500～10000mPas.
In addition, the melt flow rate (MFR) of polymer (MFR), under the condition of 190 ℃ of temperature, weight 2.16kg, for example for below the 10g/10 branch, in addition, under the condition of 200 ℃ of temperature, weight 5kg, for example for below the 20g/10 branch.
These polymer can use separately or also use more than 2 kinds.
In these polymer, preferably can enumerate CR, SBS, further preferably can enumerate SBS.
In addition, in adhesive composition, preferably also contain tackifier.
Tackifier be for improve enhancement layer, with the connecting airtight property of synthetic resin and restraint layer, perhaps, enhancing during for the enhancing that improves synthetic resin and in adhesive composition, containing.
As tackifier, (for example for example can enumerate rosin series resin, terpenic series resin, coumarone-indenes and be resin, petroleum line resin, alicyclic through-stone oleoresin, aliphatic/aromatic combined polymerization through-stone oleoresin, aromatic series through-stone oleoresin etc.), phenolic aldehyde is resin (for example, terpene modified phenolic resins etc.) etc.
The softening point of tackifier is 50～150 ℃ for example, is preferably 50～130 ℃.
Tackifier can use separately or also use more than 2 kinds.
In these tackifier, preferably can enumerate petroleum line resin, phenolic aldehyde is a resin.
For the cooperation ratio of tackifier, with respect to polymer 100 weight portions, be 40～200 weight portions for example, be preferably 50～170 weight portions.
If the cooperation ratio of tackifier less than above-mentioned scope, then can not fully improve the connecting airtight property of enhancement layer and synthetic resin and restraint layer sometimes, the enhancing the during enhancing that perhaps can not fully improve synthetic resin.In addition, if the cooperation ratio of tackifier surpasses above-mentioned scope, then enhancement layer becomes fragile sometimes.
In addition, in adhesive composition, except above-mentioned composition, can also (for example add filler, antiaging agent, softening agent with suitable ratio, naphthene series oil, paraffin series wet goods), thixotropic agent (for example, montmorillonite etc.), additive such as lubricant (for example, stearic acid etc.), pigment, antiscorching, stabilizing agent, antioxidant, ultra-violet absorber, colouring agent, mould inhibitor, fire retardant.
As filler, for example can enumerate magnesia, calcium carbonate (for example powdered whiting, precipitated calcium carbonate, fine calcium carbonate (Japanese:Bai Yan ) etc.), talcum, mica, clay, mica powder, bentonite (for example, organobentonite etc.), silica, aluminium oxide, aluminium hydroxide, aluminosilicate, titanium oxide, carbon black (for example, insulating properties carbon black, acetylene black etc.), aluminium powder, glass balloon etc.Filler can use separately or also use more than 2 kinds.Wherein, can not use blowing agent just can realize the lightweight of enhancement layer by the filler of the little hollow of the proportion of use glass balloon and so on.
As antiaging agent, for example can enumerate amine-ketone system, aromatic amine system, phenol system, benzimidazole system (for example, 2-mercaptobenzimidazole etc.), thiocarbamide system, phosphorous acid system etc.Antiaging agent can use separately or also use more than 2 kinds.
For the adding proportion of additive, with respect to polymer 100 weight portions, wherein, filler for example is 1～200 weight portion, and antiaging agent for example is 0.1～5 weight portion.
And, adhesive composition can be by cooperating above-mentioned each composition to be prepared with above-mentioned match ratio example, and then, in order to form enhancement layer, again that itself and restraint layer is stacked, can enumerate following method, make above-mentioned each composition in the dissolving or disperse in known solvent (for example, toluene etc.) or water of above-mentioned cooperation ratio, preparation solution or dispersion liquid, then, the solution that obtains or dispersion liquid after coating on the surface of restraint layer, are carried out dry method (directly forming method).
Perhaps, can enumerate the solution that to obtain or dispersion liquid after coating on the surface of mold release film described later, carry out drying, form enhancement layer thus, afterwards, enhancement layer is transferred to the method (transfer printing) on the surface of restraint layer.
In addition, the preparation adhesive composition forms enhancement layer, for it is laminated on the restraint layer, can enumerate following method,, above-mentioned each composition (is removed above-mentioned solvent and water that is.) utilize for example batch mixing rolling mill, the adding pressure type kneader, extruders etc. carry out directly mixing, prepare after the mixing thing, by for example calendaring molding, extrusion molding or drawing etc., mixing thing is configured as sheet and forms enhancement layer, again it is layered in the method (directly forming method) on the surface of restraint layer.Perhaps can enumerate the enhancement layer that to form and be layered on the surface of mold release film, again enhancement layer is needed on the method (transfer printing) on the surface of restraint layer subsequently.
The thickness of the enhancement layer of Xing Chenging is 0.02～3.0mm for example thus, is preferably 0.03～1.3mm.In addition, the thickness of enhancement layer can be made as for example 0.2～1.0mm, preferably be made as 0.5～0.9mm.
In addition, in the present invention, the storage elastic modulus of the enhancement layer of above-mentioned formation in the time of 25 ℃ (G ') for example be more than the 500kPa, to be preferably more than the 1500kPa, be generally below the 200000kPa, be preferably below the 20000kPa.
Storage elastic modulus in the time of 25 ℃ can not improve enhancing during less than above-mentioned scope sometimes fully.
In addition, and 80 ℃ of storage elastic modulus of measuring down of enhancement layer (G ') for example be below the 400kPa, be preferably below the 350kPa, be generally more than the 100kPa.
If the storage elastic modulus in the time of 80 ℃ is not in above-mentioned scope, then synthetic resin and enhancement layer can not connect airtight securely sometimes.
Storage elastic modulus when 25 ℃ and 80 ℃ (G ') can describe in detail in an embodiment, can measure by Measurement of Dynamic Viscoelasticity device (condition determination: initial stage strain 0.1%, 5 ℃/minute of programming rates, frequency 1Hz).
The synthetic resin that obtains thus is 0.25～5.0mm for example with the thickness that strengthens sheet, is preferably 0.4～2.3mm.In addition, synthetic resin can be made as for example 0.3～3mm with the thickness that strengthens sheet, preferably be made as 0.3～1.3mm.
Synthetic resin is with the thickness that strengthens sheet during greater than above-mentioned scope, is difficult to realize synthetic resin sometimes with the lightweight that strengthens sheet, and in addition, manufacturing cost can increase sometimes.Synthetic resin during less than above-mentioned scope, can not improve enhancing with the thickness that strengthens sheet sometimes fully.
In addition, with strengthening in the sheet, as required, before using, can go up applying mold release film (separator) at the synthetic resin that obtains on the surface of enhancement layer (with the folded surface that the back side opposition side of restraint layer is arranged of paste layer) until reality.
As mold release film, can enumerate known mold release film such as synthetic resin film such as polyethylene film, polypropylene screen, PET film.
The synthetic resin that forms is thus fitted with the polypropylene board of thickness 2.0mm with strengthening sheet (enhancement layer), bending strength with 80 ℃ of heating 1mm displacements after 10 minutes is more than the 3N, be preferably more than the 3.5N, more preferably more than the 4N, be generally below the 20N, be preferably below the 10N, maximum deflection intensity is more than the 30N, is preferably more than the 35N, more preferably more than the 40N, be generally below the 200N, be preferably below the 80N.
In addition, for the bending strength and maximum deflection intensity of above-mentioned 1mm displacement, is the size of length 150mm * width 25mm with utilizing synthetic resin with the polypropylene board sharp processing that the enhancing sheet has carried out the thickness 2.0mm of enhancing, after obtaining test film, this test film is carried out following mensuration: utilize universal testing machine, with length of support from being made as 100mm, central authorities (length direction and width central authorities) at test film, with the speed of the pressure head of diameter 10mm, 50mm/ minute, implement the three point bending test of pushing from the polypropylene board side.
In addition, synthetic resin makes enhancement layer contact with polypropylene board with strengthening in the applying of sheet for polypropylene board.
The bending strength of 1mm displacement is meant the bending strength (intensity) that begins when the 1mm displacement takes place pressure head from pushing, the maximum deflection intensity (intensity) during when maximum deflection intensity is meant when pushing beginning and ruptures with test film.
As long as bending strength during the 1mm displacement and maximum deflection intensity just can strengthen synthetic resin fully in above-mentioned scope.
In addition, for synthetic resin with strengthening for the sheet, bonding force for example was more than the 0.3N/25mm when it utilized the normal temperature with respect to polypropylene board (25 ℃) that 90 degree disbonded tests record with peeling rate 300mm/ minute condition, be preferably more than the 1.0N/25mm, be generally below the 40N/25mm, be preferably below the 20N/25mm.
As long as bonding force is in above-mentioned scope during with the normal temperature that strengthens sheet for synthetic resin, enhancement layer just shows cohesive (microviscosity) slightly, during the normal temperature before heating, synthetic resin can be fitted with synthetic resin reliably with strengthening sheet thus.
In addition, synthetic resin is with strengthening sheet, utilize that 90 degree disbonded tests were measured with peeling rate 300mm/ minute, for example be more than the 0.5N/25mm with respect to polypropylene board with bonding force after 80 ℃ of heating heating after 10 minutes, be preferably more than the 0.8N/25mm, be generally below the 200N/25mm, be preferably below the 20N/25mm.
What in addition, 90 ° of disbonded tests of bonding force and heating back bonding force were measured according to the record of JIS Z0237 " adhesive tape adhesive sheet test method " during normal temperature.
Bonding force and heating back bonding force when bonding force and heating back bonding force were equal to the normal temperature of enhancement layer in fact when in addition, synthetic resin was with the normal temperature that strengthens sheet.
Synthetic resin of the present invention is with strengthening the enhancing that sheet can be used for synthetic resin.
As synthetic resin,, for example, can enumerate the synthetic resin that uses in the various industry goods so long as the synthetic resin that need strengthen just is not particularly limited.As the resin that forms synthetic resin, for example, can enumerate low polar resin such as olefin-based resin etc.
As the olefin-based resin, for example can enumerate polypropylene, polyethylene etc., preferably can enumerate polypropylene.
As such synthetic resin, can enumerate bumper, instrument board of automobile etc. particularly.
Fig. 1 is that expression is fitted synthetic resin of the present invention with strengthening sheet and synthetic resin, and heat, the key diagram of an embodiment of the Enhancement Method of the synthetic resin of the present invention that strengthens thus, (a) expression is prepared synthetic resin with strengthening sheet, peel off the operation of mold release film, (b) expression is fitted the operation that heats with synthetic resin with strengthening sheet and synthetic resin.
Then, with reference to Fig. 1, for describing by the embodiment that enhancing structure that strengthen, synthetic resin of the present invention and Enhancement Method were fitted, heated to synthetic resin of the present invention with enhancing sheet and synthetic resin.
Shown in Fig. 1 (a), with strengthening in the sheet 1, on restraint layer 3, be laminated with enhancement layer 2 at synthetic resin, on the surface (surface of an opposite side) of enhancement layer 2, be fitted with mold release film 6 as required with the back side that is laminated with restraint layer 3.
In addition, shown in Fig. 1 (b), synthetic resin 4 can use in above-mentioned various industry goods, for example form tabular, more particularly, can be with the outside 7 that possesses the outward appearance of being embodied in, towards inner and mode that be not embodied in the inner face 8 of outward appearance forms.
For synthetic resin is fitted with synthetic resin 4 with strengthening sheet 1, shown in the imaginary line of Fig. 1 (a), at first, from the sur-face peeling mold release film 6 of enhancement layer 2, then, shown in Fig. 1 (b), the surface of its enhancement layer 2 is contacted with the inner face 8 of synthetic resin 4,, carry out crimping according to necessity.In the crimping of synthetic resin, for example pressurize with the pressure about 0.15～10MPa with enhancing sheet 1.
And then, as required, can in pressurization, heat (thermo-compressed).That is, in advance synthetic resin is heated with strengthening sheet 1, then, warmed-up synthetic resin is fitted with strengthening sheet 1 with synthetic resin 4.
For the condition of thermo-compressed, temperature for example is more than 80 ℃, is preferably more than 90 ℃, more preferably more than 100 ℃, be generally below the heat resisting temperature of synthetic resin 4, particularly, for example be below 130 ℃, be preferably 30～120 ℃, more preferably 80～110 ℃.
Subsequently, heat with the synthetic resin 4 that strengthens sheet 1 being fitted with synthetic resin.
Heating-up temperature is more than 80 ℃, is preferably more than 90 ℃, more preferably more than 100 ℃, be generally below the heat resisting temperature of synthetic resin 4, and specifically, for example be below 130 ℃, be preferably 30～120 ℃, more preferably 80～110 ℃.In addition, be 0.5～20 minute heat time heating time for example, is preferably 1～10 minute.
If heating-up temperature and heat time heating time, synthetic resin 4 and restraint layer 3 are fully connected airtight less than above-mentioned scope, perhaps, the enhancing the during enhancing that can not improve synthetic resin 4 sometimes fully.If surpass heating-up temperature and heat time heating time above-mentioned scope, then fusion takes place in synthetic resin 4 meeting variation sometimes.
The heating of above-mentioned synthetic resin 4 can be implemented as follows, that is, put into the synthetic resin 4 that strengthens sheet 1 in the drying oven in the drying process of manufacturing of synthetic resin 4 being fitted with synthetic resin.
Perhaps, when in the manufacturing of synthetic resin 4, not having drying process, replace to drop into above-mentioned drying oven and use part heater such as hot rifle, only synthetic resin is heated with enhancing sheet 1.
Perhaps, use above-mentioned heater, only synthetic resin 4 is heated, and then can heat with two sides that strengthen sheet 1 and synthetic resin 4 synthetic resin.In addition, when only synthetic resin 4 being heated, the heat of heater is conducted (heat conduction) to synthetic resin with strengthening sheet 1 via synthetic resin 4.
In addition, synthetic resin is fitted with synthetic resin 4 with strengthening sheet 1, by synthetic resin is heated with strengthening sheet 1 and/or synthetic resin 4, synthetic resin connected airtight with synthetic resin 4 with strengthening sheet 1, form the enhancing structure of the synthetic resin 4 that has been strengthened with enhancing sheet 1 by synthetic resin.
In addition, in the enhancing structure and Enhancement Method of synthetic resin 4,, utilize enhancement layer 2, restraint layer 3 and synthetic resin 4 are connected airtight securely by in above-mentioned lower temperature, heating.Meanwhile, can improve the rigidity of synthetic resin with enhancing sheet 1.Therefore, utilize this synthetic resin, can strengthen synthetic resin 4 reliably with strengthening sheet 1.
Wherein, by only carrying out partial enhanced applying synthetic resin with strengthening sheet 1 and heating, can only strengthen simply this part in the hope of synthetic resin 4.Therefore, can prevent the increase of manufacturing cost.
In addition, synthetic resin is the simple and easy formation that possesses restraint layer 3 and enhancement layer 2 with strengthening sheet 1, therefore can seek slimming and lightweight and also simultaneously synthetic resin 4 be strengthened.
In addition, in the above description, only form enhancement layer 2, but for example, shown in the dotted line of Fig. 1, in the thickness direction way of enhancement layer 2, can be situated between at nonwoven 5 by 1 sheet material that constitutes by adhesive composition.
Nonwoven 5 can be enumerated and above-mentioned synthetic resin nonwoven identical materials.The thickness of nonwoven 5 for example is 0.01～0.3mm.
In order to make such synthetic resin with strengthening sheet 1, for example, by direct forming method, surperficial stacked the 1st enhancement layer at restraint layer 3, in addition, at the stacked nonwoven 5 in the surface (surface of a side opposite) of the 1st enhancement layer with the back side that is laminated with restraint layer 3, subsequently, at stacked the 2nd enhancement layer in the surface (surface of a side opposite) of nonwoven 5 with the back side that is laminated with the 1st enhancement layer.
In transfer printing, utilize the 1st enhancement layer and the 2nd enhancement layer, from the sandwich nonwoven 5 of the face side and the rear side of nonwoven 5.Particularly, at first,, form the 1st enhancement layer and the 2nd enhancement layer respectively, then the 1st enhancement layer is transferred to the back side of nonwoven 5, in addition, the 2nd enhancement layer is transferred to the surface of nonwoven 5 on the surface of 2 mold release film 6.
By being situated between at nonwoven 5, the intensity of the synthetic resin 4 that can strengthen as required forms enhancement layer 2 with thicker thickness easily.
Embodiment
Below, enumerate embodiment and comparative example, the present invention is illustrated in further detail, but the present invention is not subjected to the qualification of any embodiment and comparative example.
Embodiment 1
In the prescription of the cooperation shown in the table 1, be that benchmark cooperates each composition in toluene with the weight portion, make its uniform dissolution and dispersion, prepare the toluene liquid of adhesive composition thus.
Next, the toluene liquid of preparation in the coating of the surface of PET film, then, is carried out drying with 100 ℃, form the enhancement layer of thickness 0.10mm thus.
Subsequently, with enhancement layer, be transferred to thickness 0.18mm, size 25mm * 150mm through the surface of soaking resiniferous glass fabric (restraint layer) that the epoxy resin impregnation was handled, make synthetic resin thus with strengthening sheet (with reference to Fig. 1 (a)).
Synthetic resin is 0.18mm with the thickness that strengthens sheet.
Embodiment 2
In the prescription of the cooperation shown in the table 1, prepare the toluene liquid of adhesive composition similarly to Example 1.
Next, the toluene liquid of preparation is coated on the surface of 2 PET films respectively, then, carries out drying with 100 ℃, form the enhancement layer (the 1st enhancement layer of thickness 0.035mm and the 2nd enhancement layer of thickness 0.035mm) of thickness 0.035mm thus.
Next, the 1st enhancement layer is transferred to the back side of nonwoven of the PET system of thickness 0.033mm, size 25mm * 150mm, in addition, the 2nd enhancement layer is transferred to the surface of the nonwoven of PET system, come the clamping nonwoven by the 1st enhancement layer and the 2nd enhancement layer, having formed thus is situated between the enhancement layer of nonwoven (with reference to the dotted line of Fig. 1 (a)).
Subsequently, peel off 1 PET film (being laminated with the PET film of the 2nd enhancement layer), with the enhancement layer (the 2nd enhancement layer) of having peeled off the PET film be transferred to thickness 0.18mm, size 25mm * 150mm through the surface of soaking resiniferous glass fabric that the epoxy resin impregnation is handled, make synthetic resin with strengthening sheet (reference) Fig. 1 (a)).
Synthetic resin is 0.18mm with the thickness that strengthens sheet.
Embodiment 3
As restraint layer, replace soaking resiniferous glass fabric, the PET film of used thickness 0.25mm, size 25mm * 150mm in addition, is handled similarly to Example 2, makes synthetic resin with strengthening sheet.
Synthetic resin is 0.25mm with the thickness that strengthens sheet.
Embodiment 4
In the prescription of the cooperation shown in the table 1, use prescription similarly to Example 1, and then, as restraint layer, replace soaking resiniferous glass fabric, the PET film of used thickness 0.25mm, size 25mm * 150mm, in addition, handle similarly to Example 1, make synthetic resin with strengthening sheet.
Synthetic resin is 0.35mm with the thickness that strengthens sheet, and the thickness of enhancement layer is 0.10mm.
Embodiment 5 and 6
In the cooperation shown in the table 1 prescription, cooperate each composition with the weight portion benchmark, with rolling mill it is carried out mixingly with batch mixing, prepare adhesive composition thus as mixing thing.
With thickness 0.18mm, size 25mm * 150mm soak resiniferous glass fabric (restraint layer) and mold release film clamping prepared adhesive composition through what the epoxy resin impregnation was handled, under its state, utilize press-forming machine to roll, make synthetic resin thus with strengthening sheet.
Synthetic resin is 0.78mm with the thickness that strengthens sheet, and the thickness of enhancement layer is 0.60mm.
Comparative example 1
Comprise butyl acrylate 100 weight portions by making, the monomer component polymerization of acrylic acid 3 weight portions and acrylic acid 2-hydroxy methacrylate 0.1 weight portion and obtain acrylic acid series polymeric compounds, with respect to these acrylic acid series polymeric compounds 100 weight portions, cooperate Sumilite resin PR-12603 (terpene modified phenolic resins, tackifier, fusing point: 130 ℃, Sumitomo bakelite corporate system) 40 weight portions, it is mixed equably, then, with respect to acrylic acid series polymeric compounds 100 weight portions, cooperate Coronate (コ ロ ネ one ト) L (isocyanate-based crosslinking agent, Japanese polyurethane industrial group system) toluene solution 120 weight portions (solid constituent conversion), mix equably, prepare the solution of acrylic adhesive composition thus.
Next, the solution of acrylic adhesive composition of preparation is coated with on the surface of PET film (mold release film), subsequently, makes its drying with 100 ℃, thus, form the enhancement layer of thickness 0.12mm on the surface of PET film.
Next, with enhancement layer be layered in thickness 0.18mm, size 25mm * 150mm on the surface of soaking resiniferous glass fabric that the epoxy resin impregnation was handled, make synthetic resin thus with strengthening sheet.
Synthetic resin is 0.30mm with the thickness that strengthens sheet.
Comparative example 2
With respect to bisphenol A type epoxy resin (#834, the japan epoxy resin corporate system) 100 weight portions, cooperate dicyandiamide (blowing agent) 5 weight portions, imidazolium compounds (2MAOK, curing agent, four countries change into corporate system) 2 weight portions, talcum 100 weight portions, Organite (オ Le ガ Na イ ト) (organobentonite, Japan's organic clay corporate system) 10 weight portions, carbon black (rising sun #50, the insulating properties carbon black, rising sun Carbon corporate system) 0.5 weight portion, it is mixing to utilize batch mixing with rolling mill it to be carried out under 80 ℃ of conditions, prepares the mixing thing of adhesive composition thus.
Next, by drawing the mixing thing of the adhesive composition of preparation is formed the enhancement layer of thickness 0.30mm, size 25mm * 150mm.
Subsequently, with enhancement layer stacked on the surface of soaking resiniferous glass fabric that the epoxy resin impregnation was handled at thickness 0.18mm, size 25mm * 150mm, make synthetic resin thus with strengthening sheet.
Synthetic resin is 0.48mm with the thickness that strengthens sheet.
(evaluation)
For the synthetic resin of each embodiment that obtains and each comparative example enhancing sheet, estimate bending strength, storage elastic modulus and bonding force successively.Its result is as shown in table 1.
1) bending strength
The synthetic resin of each embodiment and each comparative example is fitted with the polypropylene board that strengthens sheet and thickness 2.0mm, their were heated 10 minutes with 80 ℃, then, by three point bending test, bending strength when measuring the 1mm displacement respectively and maximum deflection intensity.
In addition, in three point bending test, synthetic resin is fitted with the polypropylene board that strengthens sheet and thickness 2.0mm, obtain test film, this test film is carried out following mensuration: utilize universal testing machine (minebea corporate system), with length of support from being made as 100mm, in the central authorities (length direction and width central authorities) of test film, with the speed of the pressure head of diameter 10mm, 50mm/ minute, implement the three point bending test of pushing from the polypropylene board side.
In addition, in the applying of synthetic resin with the relative polypropylene board that strengthens sheet, enhancement layer is contacted with polypropylene board.
3) bonding force (bonding force and heating back bonding force during normal temperature)
Only at the enhancement layer that in each embodiment and each comparative example, forms, according to JIS Z0237, bonding force after the heating when measuring the normal temperature with respect to polypropylene board respectively after bonding force and the 80 ℃ of heating.
In addition, bonding force is meant bonding force after just having fitted with polypropylene board under the normal temperature (25 ℃) during normal temperature.
2) storage elastic modulus (G ')
Only in the enhancement layer that in each embodiment and each comparative example, forms, the storage elastic modulus when measuring 25 ℃ and 80 ℃ by the Measurement of Dynamic Viscoelasticity device (G ').
Condition determination as shown below.
Measurement of Dynamic Viscoelasticity device: ARES, Rheometric Scientific corporate system
Use anchor clamps: parallel-plate
The about 1.0mm of sample thickness
Diameter 7.9mm
Condition determination: initial stage strain 0.1%
5 ℃/minute of programming rates
Frequency 1Hz
3) bonding force (bonding force and heating back bonding force during normal temperature)
Only at the enhancement layer that in each embodiment and each comparative example, forms, according to JIS Z0237, bonding force after the heating when measuring the normal temperature of relative polypropylene board respectively after bonding force and the 80 ℃ of heating.
When in addition, bonding force is meant normal temperature (25 ℃) during normal temperature and the bonding force of polypropylene board after just having fitted.
[table 1]
Figure BPA00001329787800161
In addition, the details of the composition of each shown in the table 1 is as follows.
T420: trade name " Asaplen T420 ", s-B-S copolymer, styrene-content 30%, 25% toluene solution viscosity (25 ℃) 1200mPas, and MFR (190 ℃, 2.16kg): the 1.1g/10 branch, MFR (200 ℃, 5kg): 6.5g/10 branch, Asahi Chemical Industry's chemical company system
T432: trade name " AsaplenT432 ", s-B-S copolymer, styrene-content 30%, 25% toluene solution viscosity (25 ℃) 3100mPas, and MFR (190 ℃, 2.16kg): the 0g/10 branch, MFR (200 ℃, 5kg): less than 1g/10 minute, Asahi Chemical Industry's chemical company system
A: trade name " ToughplenA ", s-B-S copolymer, styrene-content 40%, 25% toluene solution viscosity (25 ℃) 650mPas, MFR (190 ℃, 2.16kg): 2.6g/10 branch, (200 ℃ of MFR, 5kg): the 13g/10 branch, the chemicals system シ ヨ ウ プ レ of Asahi Chemical Industry Application AF: trade name, chloroprene polymer, Mooney viscosity: 50 (ML1+4, at100 ℃), clear and electrician's corporate system
Alcon (ア Le コ Application) M-115: trade name, 115 ℃ of softening points (ring and ball method), waste river chemical industrial company system
Sumilite resin: trade name " Sumilite resin PR-12603 ", fusing point: 130 ℃, Sumitomo bakelite corporate system
Petrotack 90HM: trade name, 88 ℃ of softening points, eastern Cao's corporate system
Kyowamag150: trade name, average grain diameter 5.6 μ m, consonance chemical industrial company system
Organite: trade name, Japanese organic clay corporate system
Rising sun #50: trade name, insulating properties carbon black, Asahi Carbon corporate system
ノ Network ラ Star Network MB: trade name, 2-mercaptobenzimidazole, the emerging chemical industrial company of imperial palace system
In addition, above-mentioned explanation provides as illustrative embodiment of the present invention, only is simple example, can not be interpreted as limiting.The variation of the present invention that it will be apparent to those skilled in the art that is also contained within protection scope of the present invention.
Utilize possibility on the industry
Synthetic resin of the present invention is suitable for the enhancing sheet using in the enhancing of the synthetic resin such as bumper, instrument board at automobile.

Claims (11)

1. a synthetic resin is characterized in that with strengthening sheet,
Described synthetic resin possesses restraint layer and the enhancement layer that is layered on the described restraint layer with the enhancing sheet,
Described synthetic resin is fitted with the polypropylene board of thickness 2.0mm with strengthening sheet, and be more than the 3N, and maximum deflection intensity is more than the 30N with 80 ℃ of bending strengths that heat the 1mm displacements after 10 minutes.
2. synthetic resin according to claim 1 is used and is strengthened sheet, it is characterized in that,
Storage elastic modulus under 25 ℃ of described enhancement layer is more than the 500kPa, and the storage elastic modulus under 80 ℃ is below the 400kPa.
3. synthetic resin according to claim 1 is used and is strengthened sheet, it is characterized in that,
Utilize the 90 degree disbonded tests of JIS Z0237, with 300mm/ minute peeling rate measure with respect to the normal temperature of polypropylene board the time bonding force be more than the 0.3N/25mm.
4. synthetic resin according to claim 1 is used and is strengthened sheet, it is characterized in that,
Described enhancement layer is formed by the adhesive composition of hot adhesive type.
5. synthetic resin according to claim 4 is used and is strengthened sheet, it is characterized in that,
Comprise the polymer of monomers that contains conjugated diene in the adhesive composition.
6. synthetic resin according to claim 5 is used and is strengthened sheet, it is characterized in that,
Also contain tackifier in the adhesive composition.
7. synthetic resin according to claim 6 is used and is strengthened sheet, it is characterized in that,
With respect to described polymer 100 weight portions, the cooperation ratio of tackifier is 40～200 weight portions.
8. the enhancing structure of a synthetic resin is characterized in that,
By following synthetic resin is fitted with strengthening sheet and synthetic resin, then, be heated to more than 80 ℃, this synthetic resin is connected airtight with strengthening sheet and described synthetic resin, thereby described synthetic resin is strengthened,
Wherein, described synthetic resin possesses restraint layer and the enhancement layer that is layered on the described restraint layer with the enhancing sheet, described synthetic resin is fitted with the polypropylene board that strengthens sheet and thickness 2.0mm, and be more than the 3N with the bending strength of 80 ℃ of heating 1mm displacements after 10 minutes, and maximum deflection intensity is more than the 30N.
9. the enhancing structure of synthetic resin according to claim 8 is characterized in that,
In advance described synthetic resin is heated to more than 80 ℃ with the enhancing sheet, then, described synthetic resin is fitted with strengthening sheet and described synthetic resin.
10. the Enhancement Method of a synthetic resin is characterized in that,
Possess:
To possess restraint layer and be layered in the operation of the synthetic resin of the enhancement layer on the described restraint layer with enhancing sheet and synthetic resin applying, wherein, described synthetic resin is fitted with the polypropylene board that strengthens sheet and thickness 2.0mm, and be more than the 3N with the bending strength of 80 ℃ of heating 1mm displacements after 10 minutes, and maximum deflection intensity is more than the 30N; And
By described synthetic resin is heated to more than 80 ℃ with strengthening sheet and/or described synthetic resin, described synthetic resin is connected airtight with strengthening sheet and described synthetic resin, thus the operation that described synthetic resin is strengthened.
11. the Enhancement Method of synthetic resin according to claim 10 is characterized in that,
In the operation that described synthetic resin is fitted with enhancing sheet and described synthetic resin, in advance described synthetic resin is heated to more than 80 ℃ with the enhancing sheet, follow, described synthetic resin is used strengthen sheet and the applying of described synthetic resin.
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CN102993998A (en) * 2011-09-15 2013-03-27 日东电工株式会社 Reinforcing sheet for resin molded product, and structure and method for reinforcing resin molded product
CN102993998B (en) * 2011-09-15 2016-06-08 日东电工株式会社 The enhancing structure of resin forming product reinforcing sheet, resin forming product and Enhancement Method
CN110576590A (en) * 2018-06-04 2019-12-17 蓝思科技（长沙）有限公司 Film pasting method of 3D glass, tool for 3D glass film pasting and film pasting equipment

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EP2340931A1 (en) 2011-07-06
JP2010094975A (en) 2010-04-30

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Application publication date: 20110810